Apparatus for cutting perforated music-sheets.



A. J. SWING. APPARATUS FOR GUTTING PERFORATED MUSIC SHEETS.

APPLIOATION FILED APR.17, 1909.

Patented Jan.31,191-1 Wain-y fiz zwney ALFRED E. SWING, OF CINCINNATI, 01-116.

APPAIdA'iUS FOR CUTTING PERFORATEZ? ItvIUS'iIC-SHEETS.

Specification of Letters Eatent.

- Patented Jan. 31, t ll.

Application filed April 17, 1909. Serial No. 499,658.

To all 'wi'amri it may concern."

lie it known that l, ALFRED 'J SWING, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain new and useful lll'lPl'OYQlllQl'l'h in Apparatus for Cutting Perforated Music-Sheets, of which the following is a specification.

My invention relates to the punch employed for cutting the perforations in the music sheets and the means for mounting and guidin the same.

.hl y inve. ion consists in the parts and con'ihinat -n and arrangement of parts here inafter described and claimed.

In the drawings, Figure 1 is a Verticasection ofa punch and its guide; Fig. an enlarged section on 'line. 29. of Fig. l; 3, a bottom plan View of a punch; Fig. a perspectire View of the lower end of a punch and Fig. 5 a plan View of a strip of paper. showing the character of the perforations made by the punch.

in the apparatus. a series oil. punch oars are slidahly mounted between the guide ,eces u C nnd are adapted to he hrown in and out t operation by means of selector hairs l! which may he operated by any of the usual or desired i'ueans for this purpose will he rea ly understood by those s rillwl in the art, ach ot' the punch hars carries a stop (6 testing upon a bar E which is sup mrtec h r springs e and serves to elevate the punches after each operative stroke. The body portion 0'? each of the punch hairs is made in the form shown in Fig. 52, with u'shaped edges 1, sold the limbs 7) ot guide 13 are provided w. correspondin *J-shapcd notches to receive the rear es of the punch bars. guide 0 is i no nailed on itsinner face to form chai'mels da 'itecl to receive hearing strips i which t therein, being held from vertical ispluc.uieiit;-hy means of Flanges 7' extending over the top and bottom guide Q. "he inner faces of strips F are provided with ii-shaped grooves adapted to receive.

the forward edges of punchhars A. Set screws G are threaded in guide C to bear against the top and bottom oi each of the strips F so that the strips F may be nicelyadjustcd lo the punch bars A. By this ai'rangenient it will be seen that the strips it may he nicely adjusted to take up iost motion or wear on the punch bars or the extent guides and prevent turning of the punch bars.

The lower ends of punch bars A are formed into oblong shaped punches H which have fiat sides h and rounded ends 71. A. die J having oblong shaped openings j, is placed under punches H and is adapted to cooperate therewith to perforate the music sheets K as they are intermittently ted over die J. The cross sect-ion of each of the punches H is preferably approximately twice as long; in the direction of the feed of" the sheets K as it is wide and its length is made equal to the length of the smallest hole or unit desiredin sheets K. Suitable mechanism is provided for intermittently feeding the sheets K, a distance equal to the length of the fiat sides 1 1, of the punches during the period of elevation of the punches. By this construction it will be seen that a single operation of a. punch will out a perforation in sheets F. having fiat or s'raight edges and rounded ends asshown at X in Fig. 5, and that a series of consecutive operations or" a punch will out a perforation having); continuous flat or straight. edges and rounded ends as shown at Y in Fig. 5.

At Z in Fig. i have illustrated another perforation in which the positions of the punch in cutting; are indicated in dotted lines.

The ll' tdilllltteilt feed of the paper to an than the length of the cut made by the punch at each corresponding reciprocation. results in an. overlapping of the successive periorations and the production of ast'raigg ht sided slot of greater lenpth than that of the punch member. In Fi such pei'hiratiens are illustrated, and they are formed with sharp parallel edges free from any ruggedness, and the absence of such ruggedness or ii. egularity provides a full area of perforation essential when the sheet. is used as a record for a musical instrument. The rounded ends of the perforations 0bviate sharp corners which are easily engage-d and torn, and the roundei ends of the punches are not readily chipped. The elongated shape of the punches also permits of a comparatively rapid feed of the sheets to be perforated, thus increasing the output and the" perforations may he made very narrow thus increasing the number of lines of perforations per inch of Width of sheet' V-shaped grooves adapted to engage the other edge of bars A; and set screws G for adjusting strips F, substantially as specified.

2. In apparatus of the class described, the combination of punch bars A provided with V-shaped edges and carrying punches H having straight sides It and rounded ends 72 guide B having V-shaped notchesadapted to receive an edge of bars A; guide C carrying strips F having V-shaped grooves adapted to engage the other edges of bars A; and set screws G for adjusting strips F, substan tially as specified.

3. In an apparatus of the class described, a series of punch members, a guide therefor,

within which said punch members reciprocate respectively and separate the same from each other, anda second guide member registering respectively" with each punch member and adjustable relative thereto.

4. In'an apparatus of the class described, a reciprocating punch, member, a guide therefor, said punch member provided with oppositely disposed V-shaped edges registermg with coiucidently formed grooves in said guide, means for adjusting said punch member within its guide, means for controlling the reciprocation of. said punch member, and relatively with the feed of the paper to be perforated, whereby a series of punch reciprocations are had to a given length of paper feed to make. a perforation with straight, parallel edges of greater area than the cross-section of the punch;

In an apparat-us of the class described, a reciprocating punch member, a guide therefor, means for controlling the reciprocation of said punch member, said' punch member being of greater area in crossscction than the relative area of an intermittent feed or the paper thereto,'whereby a series of punch reclprocations are had to a given length of paper teed to make a per- Iteration wlth straight, parallel edges of greater length than the punch member.

ALFRED J. SWING.

Vitnesses C. A. BIcKn'rr, Bnar'ron G. RICHARDS. 

